Factors Influencing the Reductive Removal of Cr(VI) by Zero-Valent Iron Materials in the Presence of Humic Acid

Abstract:

The reduction of Chromium (VI) by ZVI filings in the presence of HA was carried out during our investigation. The factors such as reaction temperature, initial pH, Fe0 dosage which influencing the reaction were also researched. The results indicated that: 1. High reaction temperature was beneficial to the reaction. At the temperature of 25 oC, the Cr(VI) concentration decreased from 10 mg L-1 to 0.88 mg L-1 after 120 minutes, but at the temperature of 40 oC, the Cr(VI) concentration was reduce to 0.44 mg L-1; 2. Low initial pH was beneficial to the reaction, and the acid condition was beneficial to the reduction of Cr(VI); 3. the change of Fe0 dosage affect the reaction.

• Periodical: Advanced Materials Research (Volume 600)
• Pages: 96-99
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.600.96
• Online since: November 2012
• Authors: Tian En Fan, Cheng Ji Weng, Jian Hao Lin, Xiao Li Yu, Zhen Zhang
• Keywords: Cr(VI), Humic Acid (HA), Removal Efficiency, Zero-Valent Iron (ZVI)

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